Directed by Anthony Mann. With Mario Lanza, Joan Fontaine, Sara Montiel, Vincent Price. Damon Vincenti, a young vineyard worker, has a beautiful tenor voice and dreams of becoming a great opera singer. He debuts at Lardelli's Italian restaurant in San Francisco, where he is spotted by Kendall Hale, a society girl who enjoys launching young artists while making them her lovers before dumping them after use. Damon is no exception to the rule: he becomes famous but Kendall leaves him…